861368 has 8 divisors (see below), whose sum is σ = 1615080. Its totient is φ = 430680.

The previous prime is 861361. The next prime is 861391. The reversal of 861368 is 863168.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 861368.

It is not an unprimeable number, because it can be changed into a prime (861361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53828 + ... + 53843.

It is an arithmetic number, because the mean of its divisors is an integer number (201885).

2⁸⁶¹³⁶⁸ is an apocalyptic number.

It is an amenable number.

861368 is a deficient number, since it is larger than the sum of its proper divisors (753712).

861368 is a wasteful number, since it uses less digits than its factorization.

861368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107677 (or 107673 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 861368 is about 928.0991326362. The cubic root of 861368 is about 95.1472508663.

The spelling of 861368 in words is "eight hundred sixty-one thousand, three hundred sixty-eight".